Mechanical interlock-prevents both circuits from being operated at the time. The Lektro-Lok operates on the teeter-totter
principal. Pressure on one side opens or closes line, release of pressure returns switch to normal off position, pressure on
other side open or closes circuit, independent of first. Both switches can be wired normally open or normally closed. All
wiring connections are made internally with only a single cord being brought out. This eliminates costly harness
assemblies which combined with the attractive switch price offer real economy.